Station transfer device for motorcycle frame welding

Abstract

The invention provides a station transfer device for motorcycle frame welding, which relates to the field of workpiece movement transfer and comprises a welding cavity, an electric push rod, a shield, a stepping motor and a frame part placing plate. Transfer doors are arranged on the left side and the right side of the welding cavity respectively, a welding base is arranged in the middle of the welding cavity, the transfer doors are rotationally installed between the station welding table and the top plate through rotating shafts, and side connecting plates and supporting bottom plates are fixed to the left side face and the right side face of each transfer door respectively; the telescopic end of the electric push rod penetrates through the side connecting plate to be connected with the protective cover. A motor shaft of the stepping motor is downwards inserted into the hexagonal insertion hole of the rotating shaft through a hexagonal column at the bottom end of the motor shaft; and a rotating disc is rotationally clamped on the top side of the frame part placing plate. A frame part is supported by the frame part placing plate, slides to the supporting bottom plate, is buckled and protected by the protective cover and is transferred to a next station through the transfer door, so that the problems that manual hanging transfer is needed, the operation is inconvenient, and a protective structure is lacked during rotary transfer are solved.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece movement and transfer, in particular to a workstation transfer device for motorcycle frame welding. Background Art

[0002] During motorcycle production and assembly, various local components must be welded to the frame. Welding is divided into multiple processes, each completed independently in a single step. Therefore, a workpiece transfer mechanism is required between adjacent processes. Patent application number CN201110215901.9 discloses a motorcycle frame component welding station transfer mechanism characterized by a partition wall positioned between two adjacent welding stations. The partition wall includes a door frame, within which a rotating plate is mounted. The rotating plate is rotatably mounted to the door frame at its upper and lower ends, along vertically disposed pivot shafts. At least one side of the rotating plate includes a hook for suspending motorcycle frame components. Compared to existing component logistics transfer devices for motorcycle frame welding production lines, the motorcycle frame component welding station transfer mechanism of the present invention enables lean production and transfer within a single welding process flow, enabling faster and more convenient component transfer while shielding arc light to protect the welder's physical and mental health. It effectively prevents component collision and deformation, ensuring product quality and significantly improving production efficiency. The present invention also has the advantages of simple principle, stable and reliable structure and low cost.

[0003] In the current workstation transfer device, it is usually necessary to manually hang and transfer the frame components. Sometimes when the frame components are heavy, the operation is inconvenient. Moreover, during the rotation transfer, there is a lack of protective structure, which makes the frame components easily affected by centrifugal force and cause collisions. Summary of the Invention

[0004] In order to solve the problems in the background technology, the present invention provides a workstation transfer device for motorcycle frame welding, which can support the frame components through the frame component placement plate, and slide to the support base plate, and use the guard to protect it. Driven by the stepper motor, the frame component placement plate is used to support the frame components and transfer them to the next workstation through the transfer door, and it is also convenient to collect the welding slag through the welding slag collection strip.

[0005] The present invention provides a workstation transfer device for motorcycle frame welding, which specifically includes: a workstation welding table, a base, a welding chamber, an electric push rod, a protective cover, a stepping motor and a frame component placement plate; The workstation welding table is connected to the base through legs at the four end corners, and transfer end seats are fixed on the left and right ends of the workstation welding table; The workstation welding table is provided with three groups of welding chambers, and transfer doors are respectively provided on the left and right sides of the three groups of welding chambers, back plates are respectively provided on the rear sides, and welding seats are respectively provided in the middle. Pillars are respectively provided on the front and rear sides of the transfer door, and a top plate is fixed on the top side of the pillar. The transfer door is rotatably installed between the workstation welding table and the top plate through the rotating shaft thereon, and side connecting plates and supporting bottom plates are respectively fixed on the left and right sides of the transfer door. The electric push rods are respectively installed in the middle of the top side of the side connecting plate, and the telescopic ends of the electric push rods pass through the side connecting plate and are connected to the shield. The shield is buckled on the top side of the supporting base plate under the drive of the electric push rods; The stepper motor is fixed on the top plate, and the motor shaft of the stepper motor is inserted downward into the hexagonal socket of the rotating shaft through the hexagonal column at the bottom end of the stepper motor; The top middle rotating card of the frame component placement plate is equipped with a rotating disk, the bottom side is provided with an inverted T-shaped card block, and the bottom end surface and the front and rear upper end surfaces of the inverted T-shaped card block are inlaid with balls.

[0006] Furthermore, the outer end of the supporting base plate is an arc structure, and its top outer edge is provided with a slot matching the bottom end of the shield, and the middle is also provided with an inverted T-shaped slide groove matching the inverted T-shaped block on the bottom side of the frame component placement plate.

[0007] Furthermore, the transfer end seat and the welding seat are respectively provided with an inverted T-shaped slide groove that matches the inverted T-shaped block on the bottom side of the frame component placement plate, and when the arc structure at the outer end of the supporting base plate is tangentially opposite to the transfer end seat and the welding seat on the left and right, the frame component placement plate can slide back and forth between the transfer end seat and the supporting base plate, and between the supporting base plate and the welding seat.

[0008] Furthermore, a return rail and a collection frame are installed on the base. The return rail is inclined downward from right to left, and the collection frame is arranged at the left end of the return rail. The return rail is provided with an inverted T-shaped slide groove that matches the inverted T-shaped block on the bottom side of the frame component placement plate.

[0009] Furthermore, the front sides of the three groups of welding chambers are respectively provided with front baffles and welding slag collecting strips. Control boxes are respectively installed on the left ends of the front sides of the front baffles and are respectively fixed on the welding tables of the work stations. A shielding plate is rotatably installed in the welding slag collecting strips. The rear top end of the shielding plate is a rearward and downward inclined structure, and is connected to the front baffle through two sets of tension springs on the left and right sides. The rear top end of the welding slag collecting strip is provided with a locking structure that matches the rear top end of the shielding plate.

[0010] Furthermore, the bottom side ends of the welding slag collecting strip opening are respectively fixed with square cones by bolts.

[0011] Furthermore, three groups of welding fume purifiers are provided on the rear side of the base, and the welding fume purifiers are respectively arranged at the lower end of the rear side of the welding cavity. Four groups of fume extraction inlet tubes are inserted on the back plate on the rear side of the welding cavity. The fume extraction inlet tubes are fixed to the back plate through the limiting circular plate bolts on the rear side thereof, and the left and right sides of the welding fume purifier are respectively connected to the fume extraction inlet tubes through pipes.

[0012] The present invention provides a motorcycle frame welding station transfer device, which has the following beneficial effects: The present invention can support the frame parts by placing the frame parts on the plate, and slide them to the supporting bottom plate, and use the protective cover to buckle them. Driven by the stepper motor, the frame parts are placed on the plate and supported by the plate, and are transferred to the next work station through the transfer door. It is also convenient to collect welding slag through the welding slag collection strip.

[0013] In addition, by setting up a frame component placement plate and opening an inverted T-shaped slide groove on the transfer end seat, the support base plate and the welding seat, the frame component placement plate can be used to support the frame component, and the frame component placement plate can be slid onto the support base plate or the welding seat through the inverted T-shaped block on its bottom side, which is more convenient to move and more convenient than hanging transfer. The rotating disk that is rotated and clamped in the middle of the frame component placement plate is used to facilitate the rotation of the frame component more conveniently during the welding process.

[0014] In addition, by setting up a transfer door and a stepper motor, when the workpiece needs to be transferred to the next workstation, the frame component placement plate that supports the frame component is slid to the support base plate, and the electric push rod drives the guard to be buckled on the support base plate to block and protect the frame component. Then, the stepper motor drives the transfer door to rotate 180°, so that the support base plate and the frame component placement plate and the supported frame component on it are transferred to the next workstation. After the guard is opened, the frame component placement plate can be slid onto the welding seat for welding operations.

[0015] In addition, by inserting a fume extraction inlet tube at the rear side of the welding chamber, the fume generated in the welding chamber during the welding process is absorbed and purified by turning on the welding fume purifier.

[0016] In addition, by setting up a welding slag collection strip mouth and installing a baffle plate in the welding slag collection strip mouth, when the welding slag needs to be swept away, the baffle plate is pressed down so that the rear end of the baffle plate leaves the locking structure at the upper rear end of the welding slag collection strip mouth, thereby facilitating the sweeping of the welding slag into the welding slag collection strip mouth and falling along the square cone for collection.

[0017] In addition, by setting up a return rail, after the transfer welding is completed, the frame components can be removed and the frame component placement plate can be inserted into the right end of the return rail, so that it can slide into the collection frame along the inclination angle of the return rail so that the frame components can be transferred and used again. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached figure: Figure 1 A schematic diagram showing the overall structure of the present invention; Figure 2 The present invention shows Figure 1 Schematic diagram of the structure from the middle and rear side; Figure 3 The present invention shows Figure 1 Middle front structure diagram; Figure 4 The present invention shows Figure 1 A schematic diagram of the side elevation structure with one set of square cones removed; Figure 5 The present invention shows Figure 4 Schematic diagram of the structure from the middle side; Figure 6 The figure shows the overall structure of the transfer door, the electric push rod and the protective cover in the present invention; Figure 7 The present invention shows Figure 6 A schematic diagram of the structure in which the electric push rod pushes the shield downwards and buckles it onto the supporting base plate; Figure 8 A schematic diagram of the overall structure of the shielding plate and the tension spring in the present invention is shown; Figure 9 It shows a schematic structural diagram of the frame component placement plate in the present invention; Figure 10 The present invention shows Figure 9 Schematic diagram of the mid-side tilt structure.

[0021] Reference Signs List 1. Workstation welding table; 101. Support legs; 102. Transfer end seat; 103. Column; 104. Transfer door; 1041. Rotating axis; 1042. Side connecting plate; 1043. Support bottom plate; 105. Back plate; 106. Top plate; 107. Welding seat; 108. Front baffle; 109. Welding slag collection strip; 2. Base; 201. Return rail; 202. Collection frame; 3. Welding chamber; 4. Electric push rod; 5. Protective cover; 6. Stepper motor; 7. Welding fume purifier; 701. Fume extraction inlet tube; 7011. Limiting circular plate; 8. Shielding plate; 801. Tension spring; 9. Square cone; 10. Frame component placement plate; 1001. Rotating disk; 1002. Ball bearing. DETAILED DESCRIPTION

[0022] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0023] Example 1: Please refer to Figures 1 to 10 : The present invention proposes a workstation transfer device for motorcycle frame welding, comprising: a workstation welding table 1, a base 2, a welding chamber 3, an electric push rod 4, a protective cover 5, a stepping motor 6 and a frame component placement plate 10; The workstation welding platform 1 is connected to the base 2 through the legs 101 at the four corners, and the transfer end seats 102 are fixed on the left and right ends of the workstation welding platform 1; The workstation welding table 1 is provided with three groups of welding chambers 3, and transfer doors 104 are respectively provided on the left and right sides of the three groups of welding chambers 3, back plates 105 are respectively provided on the rear sides, and welding seats 107 are respectively provided in the middle. Columns 103 are respectively provided on the front and rear sides of the transfer door 104, and a top plate 106 is fixed on the top side of the column 103. The transfer door 104 is rotatably installed between the workstation welding table 1 and the top plate 106 through a rotating shaft 1041 thereon. Side connecting plates 1042 and supporting bottom plates 1043 are respectively fixed on the left and right sides of the transfer door 104; The electric push rods 4 are respectively installed in the middle of the top side of the side connecting plate 1042, and the telescopic ends of the electric push rods 4 pass through the side connecting plate 1042 and are connected to the shield 5. The shield 5 is buckled on the top side of the supporting base plate 1043 under the drive of the electric push rods 4; The stepper motor 6 is fixed on the top plate 106, and the motor shaft of the stepper motor 6 is inserted downward into the hexagonal socket of the rotating shaft 1041 through the hexagonal column at the bottom end thereof; A rotating disk 1001 is mounted on the middle rotating card of the top side of the frame component placement plate 10. During the welding process, the rotating disk 1001 mounted on the middle rotating card of the frame component placement plate 10 is utilized to facilitate the rotation of the frame component during the welding process. An inverted T-shaped block is provided on the bottom side of the frame component placement plate 10, and balls 1002 are embedded on the bottom end surface and the front and rear upper end surfaces of the inverted T-shaped block.

[0024] In the embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 6 、 Figure 9 and Figure 10As shown, the outer end of the support base plate 1043 is an arc structure, and its top outer edge is provided with a slot that matches the bottom end of the protective cover 5, and an inverted T-shaped slide groove that matches the inverted T-shaped block on the bottom side of the frame component placement plate 10 is provided in the middle. The transfer end seat 102 and the welding seat 107 are also respectively provided with inverted T-shaped slide grooves that match the inverted T-shaped block on the bottom side of the frame component placement plate 10, and the arc structure of the outer end of the support base plate 1043 is respectively tangential to the transfer end seat 102 and the welding seat 107. When the frame component placement plate 10 is tangent to the transfer end seat 102 and the welding seat 107, the frame component placement plate 10 can slide back and forth on the transfer end seat 102 and the support base plate 1043, and on the support base plate 1043 and the welding seat 107. The frame component can be supported by the frame component placement plate 10, and the frame component placement plate 10 can be slid to the support base plate 1043 or the welding seat 107 through the inverted T-shaped block on its bottom side, which is more convenient to move and more convenient than hanging and transferring.

[0025] In the embodiment of the present invention, Figure 1 and Figure 3 As shown, a return rail 201 and a collection frame 202 are also installed on the base 2. The return rail 201 is inclined downward from right to left, and the collection frame 202 is arranged at the left end of the return rail 201. The return rail 201 is provided with an inverted T-shaped slide groove that matches the inverted T-shaped block on the bottom side of the frame component placement plate 10. After the transfer welding is completed, the frame component is removed and the frame component placement plate 10 is inserted into the right end of the return rail 201 through the inverted T-shaped block on its bottom side, so that it slides along the inclined angle of the return rail 201 into the collection frame 202, so that it can be used for dragging and supporting the frame component transfer again.

[0026] In the embodiment of the present invention, Figure 4 、 Figure 5 and Figure 8 As shown, the front sides of the three groups of welding chambers 3 are respectively provided with a front baffle 108 and a welding slag collecting strip opening 109, and the front left ends of the front baffles 108 are respectively installed with control boxes and fixed on the work station welding table 1. A shielding plate 8 is rotatably installed in the welding slag collecting strip opening 109, and the rear top end of the shielding plate 8 is a rearward and downward inclined structure, and is connected to the front baffle 108 by two groups of tension springs 801 on the left and right sides, and the rear top end of the welding slag collecting strip opening 109 is provided with a locking structure that matches the rear top end of the shielding plate 8, and the bottom side ends of the welding slag collecting strip opening 109 are respectively fixed with square cone cylinders 9 by bolts. When the welding slag needs to be swept off, the shielding plate 8 is pressed down so that the rear end of the shielding plate 8 leaves the locking structure at the rear upper end of the welding slag collecting strip opening 109, so that the welding slag is swept into the welding slag collecting strip opening 109 and falls along the square cone cylinder 9 for collection.

[0027] In the embodiment of the present invention, Figure 2 and Figure 3As shown, three groups of welding fume purifiers 7 are further provided on the rear side of the base 2, and the welding fume purifiers 7 are respectively arranged at the lower end of the rear side of the welding chamber 3. Four groups of fume extraction inlet tubes 701 are inserted on the back plate 105 on the rear side of the welding chamber 3. The fume extraction inlet tubes 701 are bolted to the back plate 105 through the limiting circular plate 7011 on the rear side thereof. The left and right sides of the welding fume purifier 7 are respectively connected to the fume extraction inlet tubes 701 through pipes. During the welding process, the fume generated in the welding chamber 3 during the welding process is absorbed and purified by starting the welding fume purifier 7 after the corresponding workstation.

[0028] Specific usage and function of this embodiment: In the present invention, First, place the frame component on the frame component placement plate 10, then slide the frame component placement plate 10 onto the support base plate 1043 through the inverted T-shaped block on its bottom side, start the electric push rod 4 to drive the shield 5 to buckle on the support base plate 1043 to block and protect the frame component, start the stepper motor 6 to drive the transfer door 104 to rotate 180 degrees, so that the support base plate 1043 and the frame component placement plate 10 thereon and the supported frame component are transferred to the next station, and the electric push rod 4 is started again through the control box to open the shield 5, and the frame component placement plate 10 can be slid onto the welding seat 107 for welding operation; During the welding process, the rotating disk 1001 that is fixed in the middle of the frame component placement plate 10 is used to rotate, so that the frame component can be rotated more conveniently during the welding process. The welding fume purifier 7 can also be turned on to absorb and purify the fume generated in the welding chamber 3 during the welding process. After the welding is completed at this station, the frame component placement plate 10 on the welding seat 107 and the frame component supported thereon are slid to the support base plate 1043 on the right side, and the protective cover 5 is driven to buckle on the support base plate 1043 by starting the corresponding electric push rod 4 to block and protect the frame component. The transfer door 104 is driven to rotate 180 degrees by starting the corresponding stepper motor 6, so that the support base plate 1043 and the frame component placement plate 10 and the supported frame component thereon are transferred to the next station, so that the welding operation can be continued at the next station. When the welding slag needs to be swept away, the shielding plate 8 is pressed down so that the rear end of the shielding plate 8 leaves the locking structure at the upper end of the rear side of the welding slag collecting strip opening 109, so that the welding slag can be swept into the welding slag collecting strip opening 109 and fall along the square cone 9 for collection; After the transfer welding is completed, the frame components are removed and the frame component placement plate 10 is inserted into the right end of the return rail 201 through the inverted T-shaped block on its bottom side, so that it slides along the inclined angle of the return rail 201 into the collection frame 202 so that it can be used again for the transfer of the towing frame components.

[0029] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures can refer to the general design.

[0030] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0031] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A station transfer device for motorcycle frame welding, comprising: A workstation welding table (1), a base (2), a welding chamber (3), an electric push rod (4), a protective cover (5), a stepper motor (6) and a frame component placement plate (10); The workstation welding platform (1) is connected to the base (2) via supporting legs (101) at four end corners, and transfer end seats (102) are fixed to the left and right ends of the workstation welding platform (1); The invention is characterized in that the workstation welding table (1) is provided with three groups of welding chambers (3), and the left and right sides of the three groups of welding chambers (3) are respectively provided with transfer doors (104), the rear sides are respectively provided with back plates (105), and the middle is respectively provided with welding seats (107), the front and rear sides of the transfer door (104) are respectively provided with columns (103), the top side of the column (103) is fixed with a top plate (106), the transfer door (104) is rotatably installed between the workstation welding table (1) and the top plate (106) through the rotating shaft (1041) thereon, and the left and right side surfaces of the transfer door (104) are respectively fixed with side connecting plates (1042) and supporting bottom plates (1043); The electric push rods (4) are respectively installed in the middle of the top side of the side connecting plate (1042), and the telescopic ends of the electric push rods (4) pass through the side connecting plate (1042) and are connected to the shield (5). The shield (5) is buckled on the top side of the supporting bottom plate (1043) under the drive of the electric push rods (4); The stepper motor (6) is fixed on the top plate (106), and the motor shaft of the stepper motor (6) is inserted downward into the hexagonal socket of the rotating shaft (1041) through the hexagonal column at the bottom end thereof; The top middle rotating clamp of the frame component placement plate (10) is provided with a rotating disk (1001), the bottom side is provided with an inverted T-shaped clamping block, and the bottom end surface and the front and rear upper end surfaces of the inverted T-shaped clamping block are inlaid with balls (1002).

2. A motorcycle frame welding station transfer device according to claim 1, characterized in that: The outer end of the supporting base plate (1043) is an arc structure, and a slot is provided on the top outer edge thereof to match the bottom end of the shield (5), and an inverted T-shaped sliding slot is also provided in the middle to match the inverted T-shaped block on the bottom side of the frame component placement plate (10).

3. A motorcycle frame welding station transfer device according to claim 2, characterized in that: The transfer end seat (102) and the welding seat (107) are also respectively provided with an inverted T-shaped slide groove that matches the inverted T-shaped block on the bottom side of the frame component placement plate (10), and when the arc structure of the outer end of the support base plate (1043) is tangentially opposite to the transfer end seat (102) and the welding seat (107) on the left and right, the frame component placement plate (10) can slide back and forth on the transfer end seat (102) and the support base plate (1043), and on the support base plate (1043) and the welding seat (107).

4. A motorcycle frame welding station transfer device according to claim 1, characterized in that: A return rail (201) and a collection frame (202) are also mounted on the base (2). The return rail (201) is tilted downward from right to left, and the collection frame (202) is located at the left end of the return rail (201). The return rail (201) is provided with an inverted T-shaped slideway that matches the inverted T-shaped block on the bottom side of the frame component placement plate (10).

5. The motorcycle frame welding station transfer device according to claim 1, characterized in that: The front sides of the three groups of welding chambers (3) are respectively provided with front baffles (108) and welding slag collecting strips (109), and the left ends of the front sides of the front baffles (108) are respectively installed with control boxes and fixed on the workstation welding table (1). A shielding plate (8) is rotatably installed in the welding slag collecting strips (109), and the rear top of the shielding plate (8) is a rearward and downward inclined structure, and is connected to the front baffle (108) through two groups of tension springs (801) on the left and right sides, and the rear top of the welding slag collecting strips (109) is provided with a locking structure that matches the rear top of the shielding plate (8).

6. A motorcycle frame welding station transfer device according to claim 5, characterized in that: The bottom side ends of the welding slag collecting strip opening (109) are respectively fixed with square cones (9) via bolts.

7. The motorcycle frame welding station transfer device according to claim 1, characterized in that: The rear side of the base (2) is further provided with three groups of welding fume purifiers (7), which are respectively arranged at the lower end of the rear side of the welding chamber (3). Four groups of fume extraction inlet tubes (701) are inserted on the back plate (105) on the rear side of the welding chamber (3). The fume extraction inlet tubes (701) are bolted to the back plate (105) via a limiting circular plate (7011) on the rear side thereof. The left and right sides of the welding fume purifier (7) are respectively connected to the fume extraction inlet tubes (701) via pipes.

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